That does seem a little too much.
I wouldn't know though, I've never taking my Z to shop for anything such as headers.
The sway bars should be easy. Do those yourself? Save a few bucks.

 

I've seen z headers take non experienced folks a few days to figure out. I've seen them take experienced backyard mechanics take 8-10 hours to do. I've seen them take mechanics take 6-8 hours to do .. it's not easy by any means, very time consuming.

 

I got my car back from VTR and I love my new headers so far. I could feel a lot more hp with it! And the sway bar I could feel a little different. But untill I get it to a track then I would know.

 

congrats! vids of sound please

 

too bad you didn't do before/after dynos... woulda been interesting

 

Price check on the headers install!

 

I think it was 500 just for the headers.

 

Daaaaaamn.
*Goes to Jining's thread*

 

This is what your butt dyno says. But what does a real dyno say.......?